Theodolite is an instrument used for
(a) Tightening the capstan-headed nuts of level tube
(b) Measurement of horizontal angles only
(c) Measurement of vertical angles only
(d) Measurement of both horizontal and vertical angles*

1 Answer

Answer :

(d) Measurement of both horizontal and vertical angles*

Related questions

Description : Which of the following in theodolite work is imperfect adjustment of the instrument (a) Error due to line of collimation being perpendicular to the horizontal axis (b) Error due to axis not to perpendicular ... to imperfect graduation (d) Error due to eccentricity of vernires (e) All of the above*

Last Answer : (e) All of the above*

Description : Describe the use of digital theodolite for measurement of horizontal and vertical angle.

Last Answer : I) Procedure for measurement of horizontal angle with digital theodolite: 1) Taking out digital theodolite for box and fix it on tripod over required station. 2) Approximate leveling by leg adjustment and ... and take the reading at B. 9) Difference of two angle gives required vertical angle AOB

Description : While rotating the theodolite in the horizontal plane, the bubble of the bubble tube takes up the  same position in its tube, it indicates  (A) The rotation axis is vertical  (B) The trunnion ... (C) The line of collimation is perpendicular to vertical axis  (D) None of the above

Last Answer : (A) The rotation axis is vertical

Description : Subtense bar is an instrument used for (A) Levelling (B) Measurement of horizontal distances in plane areas (C) Measurement of horizontal distances in undulated areas (D) Measurement of angles

Last Answer : (C) Measurement of horizontal distances in undulated areas

Description : In precision theodolite traverse if included angles are read twice and the mean reading accepted using both verniers having a least count of 30". Assuming the instrument to be in perfect adjustment, linear measurements correct to 6 mm per ... legs) (A) 50" n (B) 30" n (C) 60" n (D) None of these

Last Answer : (A) 50" n

Description : Explain the procedure for measurement of vertical angle using digital theodolite

Last Answer : Digital Theodolite for measurement of vertical angle. 1)Taking out digital theodolite for box and fix it on tripod over required station. 2) Accurate centering and aapproximate leveling by leg ... required vertical angle from zenith point or horizantal plane as per setting of the instrument. 

Description : Contour interval on a map sheet denotes (a) Vertical distance of contour lines above the datum plane (b) Vertical distance between two successive contour lines (c) Slope distance between two successive contour lines (d) Horizontal distance between two successive contour lines

Last Answer : (b) Vertical distance between two successive contour lines

Description : Tandem rig test with 450 probe for AT weld detects. (i) Horizontal longitudinal defect in weld. (ii) Vertical oriented defect in AT weld.* (iii) Transverse defect in AT weld. (iv) Defect in flange of AT welds.

Last Answer : (ii) Vertical oriented defect in AT weld.*

Description : Which gauge is used to measure the height of rail at the time of aligning of rails for AT welding? (i) Height gauge.* (ii) Vertical gauge (iii) Horizontal gauge (iv) As decided by site supervisor

Last Answer : (iv) As decided by site supervisor

Description : The diaphragm of a stadia theodolite is fitted with two additional (A) Horizontal hairs (B) Vertical hairs (C) Horizontal and two vertical hairs (D) None of these

Last Answer : (A) Horizontal hairs

Description : In a theodolite the line passing through the intersection of the horizontal and vertical cross hairs and the optical centre of the object glass and its continuation, is known as (a) Horizontal axis (b) Vertical axis (c) Line of collination (d) Line of sight (e) Either of c or d above*

Last Answer : e) Either of c or d above*

Description : The survey instrument used for reconnaissance survey (a) Theodelite & Dumpty level (b) Prismatic compass & Aneriod barometer* (c) All the above (d) None of them

Last Answer : (b) Prismatic compass & Aneriod barometer*

Description : Dumpy level is most suitable when (a) The instrument is to be shifted frequently (b) Fly leveling is being done over long distance (c) Many readings are to be taken from a single setting of the instrument* (d) All of the above

Last Answer : (c) Many readings are to be taken from a single setting of the instrument*

Description : The vertical clearance of bottom most foot over bridge structure above rail level is a) 6525 mm* b) 3660 mm c) 5330 mm d) 6250 mm

Last Answer : a) 6525 mm*

Description : Vertical Clearance (VC) in water way bridges is the level difference between a) HFL and Formation level b) Bed level and bottom of superstructure c) HFL and bottom of superstructure* d) Rail level and Formation level

Last Answer : c) HFL and bottom of superstructure*

Description : The line of sight is kept as high above ground surface as possible to minimise the error in the observed angles due to (A) Shimmering (B) Horizontal refraction (C) Vertical refraction (D) Both shimmering and horizontal refraction

Last Answer : (D) Both shimmering and horizontal refraction

Description : What is the full form of OMS used for track recording a. Outer most Surface b. Oscillation Monitoring system* c. Only measuring system d. Official measurement system

Last Answer : b. Oscillation Monitoring system*

Description : Pick up the correct statement from the following: (A) Box sextant is used for the measurement of horizontal angles (B) Cross staff is used for setting out right angles (C) Gradiometer is used for setting out any required gradient (D) All the above

Last Answer : (D) All the above

Description : Accurate measurement of deflection angles with a transit not properly adjusted may be made by (A) Setting the Vernier A at zero at back station and then plunging the telescope (B) Setting the ... back sights one with the telescope normal and the other with telescope inverted (D) None of these

Last Answer : (C) Taking two back sights one with the telescope normal and the other with telescope inverted

Description : In order to do fly levelling the following type of methodology is adopted (a) Rise & fall method (b) Height of instrument method (c) Both the above* (d) None of the above

Last Answer : c) Both the above*

Description : Pick up the correct statement from the following: (A) When the electric field oscillates in the direction of the electric vector, a plane polarised wave is formed (B) When the electric vector is ... right angles to the plane of incidence, horizontal polarization wave is formed (D) All of these

Last Answer : Answer: Option D

Description : Weight of steel crib 75x75x10mm angles a) 200kg b) 187.2kg* c) 210kg d) 185kg

Last Answer : b) 187.2kg*

Description : For taking track measurement at accident site stations shall be marked at …….. Apart. (a) 1 m (b) 2m (c) 3m* (d) 5m

Last Answer : (c) 3m*

Description : Centering error of a theodolite produces an error (A) In all angles equally (B) Which does not vary with the direction or pointing (C) Which varies with the direction of pointing and inversely with the length of sight (D) None of these 

Last Answer : (C) Which varies with the direction of pointing and inversely with the length of sight 

Description : The included angles of a theodolite traverse, are generally measured (A) Clockwise from the forward station (B) Anti-clockwise from the back station (C) Anti-clockwise from the forward station (D) Clockwise from the back station

Last Answer : (D) Clockwise from the back station

Description : The most reliable method of plotting a theodolite traverse, is (A) By consecutive co-ordinates of each station (B) By independent co-ordinates of each station (C) By plotting included angles and scaling off each traverse leg (D) By the tangent method of plotting

Last Answer : (B) By independent co-ordinates of each station

Description : Which of the following methods of theodolite traversing is suitable for locating the details which are far away from transit stations? (A) Measuring angle and distance from one transit station (B) ... at one station and distance from other (D) Measuring distance from two points on traverse line

Last Answer : (B) Measuring angles to the point from at least two stations

Description : The instrument which is used in plane tabling for obtaining horizontal and vertical distances directly without resorting to chaining, is known as (A) Plane alidade (B) Telescopic alidade (C) Clinometer (D) Tacheometer

Last Answer : (B) Telescopic alidade

Description : Most appropriate instrument for measurement of internal and external diameter of a tube is A. vernier callipers B. micrometer screw gauge C. meter rule D. measuring tape

Last Answer : vernier callipers

Description : State the procedure for measurement of deflection angle by transit theodolite

Last Answer : Procedure: 1. Set up the theodolite at Q and level it accurately. 2. With both plate clamped, the vernier A reading 360o take back sight on P (i.e bisect ranging rod at ... angle is doubled and hence, one half of this average value gives the accurate value of deflection angle at Q. 

Description : If code of a fracture is OFW-422 then it means. (i) AT welding with transverse crack. (ii) Flash butt welding with transverse crack. (iii) At welding with horizontal crack.* (iv) None of the above.

Last Answer : (iii) At welding with horizontal crack.*

Description : Facia boards of platform shelters shall have a minimum horizontal clearance of ……. from C.L. of track at a minimum height of 4.61m above RL. a) 2360 mm b) 3660 mm c) 3000 mm d) 1600 mm*

Last Answer : d) 1600 mm*

Description : The horizontal clearance between guard rail and running rail in BG track is a) 25 mm b) 250 ± 50 mm* c) 75 mm d) 200 ± 50 mm

Last Answer : b) 250 ± 50 mm*

Description : The horizontal clearance of edge of foot over bridge structure from face of platform is a) 6525 mm b) 3660 mm* c) 5330 mm d) 5300 mm

Last Answer : b) 3660 mm*

Description : The minimum horizontal distances form centre of track to face of passenger platform coping for B.G. is ……. Mm (A) 1650 MM. (B) 1670 MM* (C)1676 MM (D) 1685 MM

Last Answer : (B) 1670 MM*

Description : Steam is routed through the tube in case of a __________ evaporator. (A) Basket type (B) Horizontal tube (C) Short tube vertical (D) Long tube vertica

Last Answer : (B) Horizontal tube

Description : Steam is to be condensed in a shell and tube heat exchanger, 5 m long with a shell diameter of 1 m. Cooling water is to be used for removing the heat. Heat transfer co-efficient ... ) Horizontal heat exchanger with steam on tube side (D) Horizontal heat exchanger with steam on shell side

Last Answer : (B) Vertical heat exchanger with steam on shell side

Description : A __________ evaporator employs an annular downtake. (A) Basket type (B) Horizontal (C) Long tube vertical (D) None of these

Last Answer : (A) Basket type

Description : Forced circulation evaporators are useful for the concentration of viscous, salting and scale forming liquors. Which of the following is a forced circulation evaporator? (A) Long vertical evaporator (B) Horizontal tube evaporator (C) Agitated film evaporator (D) Calandria vertical tube evaporator

Last Answer : (C) Agitated film evaporator

Description : In what form are the boiler tube arrange in Lamont boiler ? a. Parallel in vertical b. Inclined vertically c. Parallel in horizontal d. Horizontally inclined

Last Answer : c. Parallel in horizontal

Description : Cochran boiler is a a) Horizontal fire tube boiler b) Horizontal water tube boiler c) Vertical water tube type d) Vertical fire tube type

Last Answer : d) Vertical fire tube type

Description : The method of plane tabling commonly used for establishing the instrument station is a method of (a) Radiation (b) Intersection* (c) Resection (d) Traversing

Last Answer : (b) Intersection*

Description : The following instrument is used to set out a right angle (a) Cross staff (b) Optical staff (c) Prism square (d) None of the above (e) All the above*

Last Answer : e) All the above*

Description : Conventional method of camber recording a) Piano wire with counter weight* b) By using leveling instrument c) Offset method d) None of the above

Last Answer : a) Piano wire with counter weight*

Description : Explain the method of repetition to measure horizontal angle using transit theodolite. 

Last Answer : Procedure: 1 Suppose the angle AOB is to be measured by the repetition process. The theodolite is set over O. The instrument is centered and levelled properly.Vernier A is set at 00 and vernier is at 1800 ... 8 The mean of the two angles obtained from two faces gives the actual angle AOB. 

Description : In new Rail as well as second hand rails how much end bends of the rails in vertical are permitted when checked with one meter straight edge before welding? (i) +0.5mm, -0 mm in vertical * (ii) +0.2mm, -.3 mm in vertical (iii) +0.3mm, -2 mm in vertical (iv) 0 mm, +.5 mm in vertical

Last Answer : (i) +0.5mm, -0 mm in vertical *

Description : Maximum vertical clearance (VC) for a slab/ girder bridges with discharge above 3000 cumecs is a) 300 mm b) 1500 mm c) 1800 mm* d) 600 mm

Last Answer : c) 1800 mm*

Description : Minimum vertical clearance (VC) for a slab/ girder bridges with discharge of 0-30 cumecs is a) 300 mm b) 1500 mm c) 1800 mm d) 600 mm*

Last Answer : d) 600 mm*

Description : The minimum vertical clearance in RUB in urban area shall be a) 5870 mm b) 6525 mm c) 5000 mm d) 5500 mm*

Last Answer : d) 5500 mm*